Process for the manufacture of plastic substances.



I To all whoin it mdy concern:

- factories, not however exc udin nnnvrtron L mNnKoGnL, or FEUERBACH-STUTTGAR'I, GERMANY.

PROCESS FOR run MAunFAc'ruan-orrnas'rrosnnsrauons.

No Drawing.

- Be it known .that- I, HEINRICH LINNE KOGEL, a subject offthe King of Wtirtemberg, and resident of Feuerbach-Stuttgart, in the Kingdom Of Wii'rtemberg, German Empire, chemist, haveinvented a new and useful Process for the Manufacture of Plastic Substances, of which the following is a specification.

The object of the present invention is an improved process for the manufacture ofplastic substances suitable for the'production of figures, useful articles, articles of luxury,.apparatus and instruments, as also of coverings for-floors, walls and the like when laid'upon either a foundation or support.

According to this invention employ a fibrous materialas' the base for the plastic substance and preferably industrial waste products of little value, such as for example the refuse from pa er and cellulose the use of cellulose itself, woodpulp, pu p of every kind employed in the manufacture of paper,

'or the almost valueless waste fleece from cloth factories. The fibrous material. is

' I worked into asoft and plastic mass which to ,the purpose to upon exposure to the air gradually hardens without becoming brittle. To this .end themassf streated with glue suitably prepared .to'which a slight hardening or tanning effect has been imparted, for 'instance by the. addition'of a small] quantity of tannln or salts of'alumina biv'chromate of potash orother substancehaving a like efiect and to which a hygroscopic substance, for instanceglycerin; has been added. Finally it is necessary that the mass be worked into a perfectly homogeneous state and to add a little resin or colophony in an alkali solutionand further a suitable mineral or vegetable oil.

The relative roportions of the above mentioned ingre ients. will vary according which the plastic substance is to be applied. "It hasbeen found however that the plastic substance can be advantageously produced in the following manner for example: The fibrous material forniin the base is first boiled with a solution 0 lue until it becomes a consistent mass. *hygroscopic substance, for example glycerin, and a tanning. orpreserving substance, for example 1-2 tannin are then added. To the resulting Specification of Letters Patent. I

7 added thereto.

rigid or flexible for modeling purposes.

. the product' on per cent. of

Pa tented: J an., 3, 1911.

Application filed April 21,1910. Serial m3. 556,713.

mass is added resinous soap or resin, colophony .or the like in an alkali solution, for I instance in dlluted ammonia or' gas liquor and further the necessary oil is directly The oil may however be first mixed with the solution of resin or the like. The whole mass is then thoroughly worked and heated. When the heating is ended the product is allowed to cool for several hours whereupon it will be found to be extremely elastic and capable of r'eceiv;

' ing any requiredcolor.

Should a less consistent mass be desired this may be easily obtained by stirring with an added quantity of alkali fluids for in-. stance a solution of soda' o'r'gas liquor.

For the production of special apparatus or in cases where the requirements demand that'the material shall possess special properties the'resin may be partially or wholly replaced by india-rubber, gutta-percha 'ba) lata and the like in corresponding solution.

The finished product can be prepared in variqus colors'and tints, packed in tins or otherreceptacles, transported to the place where it is to be used and'there spread outwith suitable tools. After two or three'days the material becomes hard enough'to be at once brought into use.

- Either before or' after hardening suitable decorative effects or patternsm'ay be produoed thereon in colors or plasticdecorationsmaybe-added; I' f The material whe laid'upon a foundancss so that unlikethe'usual coverings for floors and walls "it does not'require the previous 'preparation of a smooth foundation.

Joints, cracks and broken places common-for example with a covering of linoleum especiallywhenlaid upon a rough or relatively sharp edged foundation, are avoided. Further as compared with coverings oflinoleum, leatheror leather paper it is easily handled and worked onthe spot not only for the first time but also during when laid repairs. The pr'oduct' is also well adapted pressedinto the greatest variety of forms in of figures and other varlous objects;

- For floor coverings it has already been proposedto use asomewhat similar substance" mixed with casein. The substance thus prepared however posseses several disadvantages. For instance it loses its elastion adapts itself, to any -fo'rm or uneven- It can also be ticity in a very short time after being laid down, and when laid upon a damp foundation cracks soon appear. The material soon becomes hard and brittle as sealing wax. A further disadvantage of the casein product is that it becomes foul. It must also be used Very soon after its preparation as otherwise it becomes useless. On the other hand the material according to the present invention retains its properties unaltered for a long time. It can for instance be used in any desired thickness and even asthin as a millimeter in which case the casein prod not would break and flake ofi in-3-4 weeks. The product according to the present invention will'retain its high elasticity and property of resisting under all ordinary temperatures for years.

1 claim:

1. Process for the production of a plastic substance which consists in treating afibrous mass with glue, some tanning substance and a hygroscopic substance, adding to the ,resulting mass a resinous substance in alkali solution, india rubber, and an oil.

2. Process for the production of a plastic substance which consists in boiling fibrous material with a solution of glue, substance and a hygroscopic substance adding to-theresulting mass a resinous substance in an alkali solutionand an oil and thoroughly working the whole under con tinued heat.

3. Process for the production of a plastic substance which consists in boiling fibrous material with a solution of glue, a tanning substance and a hygroscopic substance adding to the resulting mass a resinous substance in an alkali solution and an oil, thoroughly working the whole under continued heat and finally allowing the product to cool. 4 v

4. Process for the production of a plastic substance which consists in boiling fibrous material with a solution of glue, a tanning substance and a hygroscopic substance adding to the resulting mass a resinous substance in an alkali solution, india rubber in solution and an oil and thoroughly working the whole under continued heat.

5. Process for the production of a lastic substance which consists in boiling fibrous material with a solution of glue, a tanning a tanning substance and a hygroscopic substance adding to the resulting mass a resinous substance in analkali solution, india rubber insolution and an oil, thoroughly working the WllOlG under continued heat and finally allowing the product to cool.

6. Process for the production of a plastic substance which consists in boiling fibrous mass 1-2 per cent. of tannin, adding to the resulting mass a mixture of a resinous sub stance in an alkali solution and oil, thoroughly working the whole under continued heat and finally allowing the product to cool. r

8. Process for the-production of a plastic substance which consists in boiling fibrous material with a solution of glue until'i't becomes a consistent mass, addingto said mass 1-2 per cent-of tannin, adding to the resulting mass a resinous substance in an alkali solution, india rubber in solution and oil, thoroughly working the whole under continued heat and finally allowing the product to cool. f

9. A plastic substance comprising fibrous material as a base, glue, a tanning substance, resin, and alkali, india rubberand an oil.

10. A plastic substance comprising fibrous material as a base boiled in glue 1-2 per cent. o f1 tannin, resin in ammoniat-ed solution and 01 11. A pla'st-ic substance comprising fibrous material as a base boiled in glue 1-2 per cent.-

of tannin, resin in ammonia'ted solution, india rubber in solution and an oil.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

v HEINRICH LiNNnKoGnL. Witnesses WOLDEMAR HAUPT, HENRY HAsPEm 

